An Image Encryption Algorithm Based on Chaotic Maps and Discrete Linear Chirp Transform
This addresses image security for applications like secure communication, though it appears incremental as it builds on existing chaotic and transform-based methods.
The paper tackles image encryption by proposing a novel algorithm combining chaotic block image scrambling with a two-dimensional discrete linear chirp transform, and security analysis demonstrates its effectiveness through various metrics.
In this paper, a novel image encryption algorithm, which involves a chaotic block image scrambling followed by a two-dimensional (2-D) discrete linear chirp transform, is proposed. The definition of the 2-D discrete linear chirp transform is introduced and then it is used to construct the basis of the novel encryption algorithm. Finally, security analysis are performed to show the quality of the encryption process using different metrics.